It is certainly a place you will encounter strange and astonishing forms of marine, desert and rainforest life.Basel Zoo in Switzerland was opened in 1874, allowing it to rank as one of the oldest zoos in operation today. The zoo is, in fact, the second most visited attraction in all of Switzerland. 

There are more than 6,000 animals in this popular Swiss destination, including Somolian wild donkeys and dwarf hippopotami!

The Bronx Zoo in New York is the largest zoo you’ll find in a metropolitan location in the United States. The park itself takes up over 250 acres of land and includes a number of endangered and rare species in its collection of over 4,000 animals.